An almost weekly update of environmental news, particularly marine updates, with occasional splatters of transportation, indigenous, ideas of sustainability and sustainable development from around the world.

27.7.07

Vanishing Bees May Get By with a Little Help from the Army

Since last fall, the strange phenomenon known as Colony Collapse Disorder (CCD) has killed off a quarter of America's honeybee population, and threatened 25 percent of our food supply. (A wide variety of crops rely on pollination.) This past spring, a nationwide effort by top DNA scientists determined that CCD is probably caused by a number of factors, including multiple bee-killing viruses. But identifying specific viruses with DNA sequencing is a slow, painstaking process.

That's where Charles Wick (then the leader of the chemical and biological detection team at the Army's Aberdeen Proving Grounds in Maryland) came in, volunteering a microwave-size invention to help the cause. Originally used to screen drinking water for pathogens, Wick's 50-pound Integrated Virus Detection System (IVDS) hits a sample with an electric charge, then counts and sizes the particles making up the sample to identify viruses. By measuring to the nanometer, the IVDS can pin down a disease in 10 minutes.

As a trial run, CCD surveyors sent Wick samples from suffering beehives, which he liquefied in a blender, filtered using a cheesecloth, and ran through the IVDS. "They'd been working on this for six or seven months," Wick says, "so we brought in a new technology and immediately detected the pathogens they were looking for."

The surveyors were astonished: Within minutes, the IVDS had found multiple suspicious viruses, kick-starting the chase for the cause of the collapsed colonies. Wick's invention is now part of the ongoing CCD effort, and a commercial version of the device has just been released.